diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca316ab..e163f80 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,6 @@
 name: Spout CI
 
-on: push
+on: [push, pull_request]
 
 jobs:
   tests-on-php-latest: